BCM3350
PRODUCT
Brief
O F
B E N E F I T S
BCM3350 QAMLINK
®
SINGLE-CHIP CABLE MODEM
B C M 3 3 5 0
F E AT U R E S
S U M M A R Y
•
The highest level of silicon integration ever achieved
•
The BCM3350 integrates:
• QAMLink transceiver supporting Annex A/B/C operation
• DOCSIS/EuroDOCSIS 1.0/1.1 based MAC
• High performance 80 MHz MIPS-32 CPU
• 10/100 Ethernet MAC and PHY with MII interface
• USB 1.1 slave port with integrated transceiver
• IPSEC interface including DES, 3-DES, CBC, MD5, SHA
algorithm support
• TDM interface capable of supporting up to four voice
channels
for a DOCSIS/EuroDOCSIS cable modem, integrating
all the major silicon components of a cable modem
into a single device
•
The BCM3350 integrates all the silicon components of
a cable modem, resulting in dramatic overall system
cost reduction.
embedded ICE support for ease of software
development and debug.
•
Includes an 80 MHz MIPS-32 CPU with EJTAG
•
Displays superior performance in noisy plant
•
Features a full IPv6 IPSec module to support
environments as a result of Broadcom’s newest
generation of Broadcom QAMLink technology.
advanced applications such as Virtual Private
Networking (VPN).
plug and play external cable modem implementations.
MII eliminating the need for any external Ethernet
components.
•
The full USB 1.1 compliant interface enabling simple
•
The integrated 10/100 Ethernet MAC and PHY with
•
Includes seamless interface with the BCM4210/4100
features for low-power operation.
• SDRAM interface
• External bus interface with eight programmable chip selects
• GPIO interface
•
2.5V operation
•
352-pin TBGA package
HPNA 1/2 components for low-cost home networking
extensions.
•
Features a completely static design with powerdown
Low-Cost DOCSIS/EuroDOCSIS Cable Modem
SDRAM
SAW
Tuner
BCM3350
Single-Chip
DOCSIS/
EuroDOCSIS 1.0/1.1
Cable Modem
BCM4210
HPNA 2.0
BCM
4100
10/100
Ethernet
USB 1.1
RJ-11
FLASH
B C M 3 3 5 0
O V E R V I E W
GPIO Port
Serial Ports
JTAG Port
10-bit
DAC
Amp/Tuner Control
Clock Gen & PLLs
D-CACHE
I-CACHE
Timers
PIC
Peripheral Bus
MIPS R3000 CPU
with EJTAG Interface
Peripheral Bus Bridge
Upstream
MAC
BPI Interface
Downstream
MAC
16-channel
US DMA
Reg Interface
Two-channel
DS DMA
DMA Controller & Central Arbiter
16-bit External Bus Interface
QPSK/16QAM
Modulator
Starvue
MCNS/DAVIC FEC
Direct TDM CODEC Interface
Register Interface
QAM
Demodulator
ITU-T J.83
Annex A/B/C FEC
32-bit SDRAM Controller
10-bit
ADC
USB Device Controller
USB XVER
Acquisition
and Tracking Loops
FEC Memory
SPI
IP Security Module
10/100BASE-TX
Ethernet MAC
10/100BASE-TX
Transceiver
The Broadcom
BCM3350
represents a new level of cost-
reduction for DOCSIS/EuroDOCSIS cable modems. Key
modules integrated in the
BCM3350
include:
• 64/256 QAM receiver which supports direct IF sampling
with an integrated 10-bit A/D converter and a ITU-J.83
Annex A/B/C compatible decoder. QPSK/16QAM
transmitter consisting of programmable
DOCSIS/EuroDOCSIS and DAVIC FEC encoder, with pre-
equalization filter and a 10-bit D/A converter with output
power control.
• DOCSIS/EuroDOCSIS 1.0/1.1 based MAC supports an
integrated DES encryption/decryption engine, and QoS,
support for 16 SIDS in the downstream, 16 destination
address filters, 256 multicast DA filters and 16 independent
upstream queues for QoS, as well as extended network
management MIB/diagnostic features
• MIPS-32 80 MHz R3000 processor with 4K two-way set
associative I-cache and a 4K two-way associative D-cache.
• Full-speed USB 1.1 interface supports concurrent
operations of control, bulk, isochronous and interrupt
endpoints. It also supports USB standard commands, as
well as class/vendor specific commands.
• 10/100 Ethernet Transceiver and Media Access Controller
(MAC) with MII. The transceiver/MAC performs all of
the functions for 100BASE-TX Ethernet in full- or half-
duplex mode over Category (CAT) 5 twisted pair cable and
10BASE-T Ethernet in full- or half-duplex mode over CAT
3, 4, or 5 twisted pair cable.
• IPSec module with single-DES (CBC & ECB modes),
triple-DES (CBC & ECB modes), MD-5 and SHA
authentication in hardware providing support for
application in Virtual Private Networks (VPN).
• TDM four-wire serial interface with variable timeslots
from 2–32 that can be assigned to one of four transparent
input/output channel controllers enabling support for up
to four voice channels or one video (384 Kbs) and one
voice channel.
The
BCM3350
represents the first silicon solution that
integrates all the key silicon components of a cable modem
into a single device, reducing the overall cost and complexity
of cable modem products.
Ordering Information:
BCM3350KPP
BCM3350IPB
Commercial Temperature Grade
Industrial Temperature Grade
Broadcom
®
, the pulse logo and
QAMLink
are registered trademarks of Broadcom
Corporation and/or its subsidiaries in the United States and certain other countries.
For more information please contact us at:
Phone: 949-450-8700, FAX: 949-450-8710
Email: info@broadcom.com
Visit our web site at: www.broadcom.com
© 2000 BROADCOM CORPORATION
3350-PB02-R-10.24.00
BROADCOM CORPORATION
16215 Alton Parkway, P.O. Box 57013
Irvine, California 92619-7013
PCB Design
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